Brick-mold



UNITED STATES PATEN QFFID.

JAMES A. HAMER, OF READING. PENNSYLVANIA.

BRICK-MOLD.

Specification of Letters Patent No. 22,119, dated November 23, 1858.

To all whom t may concern.'

Be it known that I, JAMES A. HAMER, of the city of Reading, in thecounty of Berks and State of Pennsylvania, have invented a new anduseful Improvement on Brick- Molds, (Hand.) of which the following is afull and exact description, the accompanying drawings also making a partof this specification, the same letters referring to like Partsthroughout.

Figure l is a View of the mold frame with its appendages turned bottomside up. Fig. 2 is a sectional view cut lengthwise showing the followersout and also the position of the hand piece at that point and the brickunderneath. Fig. 3, shows the hasps or staples upon the under side ofthe hand piece and the position of the pins, when the followers are intheir natural position. Fig. l, is merely another' form of making thecrank rods hereinafter described.

A is the mold frame or box with its partitions or divisions.

B are the followers or bottomsof the molds.

C C are the two crank rods with a number of cranks upon each rodcorresponding with the number of molds in the frame or box; said crankrods are also provided with a number of journals or bearingscorresponding with the partitions or divisions of the frame or box towhich they are secured by means of the cap pieces D; the said ournalsare made eccentric with the body of the rods in order to let the cappieces in level with the surface of the same, and at the same time allowas much strength as possible to them. The said crank rods are thussecured to the partitions or divisions in such a manner that they mayturn freely from a horizontal to nearly a vertical position. rods C Care also provided with similar' journals on that part which acts uponthe followers, the number of journals onv each mayA correspond to thenumber of followers, or there may be two, to each follower. The saidjournals are made to receive the hasps or staples E. Said hasps orstaples are secured to the follower B with screws or rivets and made ofsufficient length to allow said cranks to move within them and upon thesurface of the followers a sufficient distance to move the followersentirely out of the mold. The said crank rods C C are also provided eachwith the arm F at one end extending out from the point of bearing in theThe said crank direction of the cranks and nearly parallel to the same,said arm carrying two pins or projections marked respectively G and H.

I is a hand piece suspended at one end of the frame between its sidesupon suitable bearings. Said bearings are situated upon the hand piece Iat points somewhat farther from the side which is taken hold of by thehand, than the other in order to make it easier for the operator, theoperation of the whole being as follows: The molds in the frame or box,are filled by the machine or otherwise and borne off and struck down inthe usual manner; the frame is then gently lifted and if necessary, thesuspended hand piece is slightly turned7 by which action the pin G inthe arm F comes in contactwith the under side of said hand piece7having' a tendency to carry the arms down with it and consequently thefollowers. But they. lying immediately on the top of the brick cannotdescend, so the action takes effect upon the frame and has a tendency toforce the same upward by coming in contact irst, with the pin Gr in theextreme lend of the arm F; thus the force necessary to start the brickfrom the mold, is produced, at which moment a diminished force isdesirable. The hand piece then comes in contact with the pin H which isset lower on the arm F and nearest the center or bearing whichnecessarily does not move so far in throwing the followers out;consequently the frame is lifted entirely oif the brick with out turningthe said hand piece but slightly. The said hand piece is also providedwith two hasps or staples on the under side which surround the pins Hand which act upon said pins by turning said hand piece in the oppositedirection, and serve to bring the arms. and consequently the followers,back to their original position; said has-ps or staples serving also asa stop to prevent the followers froin descending beyond the desireddistance, by the pin H coming in contact with one end of said hasp orstaple.

I am aware that brick molds have been constructed to facilitate thedelivery of the brick from the same, which have been objectionable inthe following particulars. One mode to which I refer is objectionablebecause the molds are exceedingly clumsy in their construction.occupying twice the space in depth, of the usual mold. The second modeis objectionable tirst because the ends of the frame are both extendedby the use of two suspended hand pieces, which necessarily prevents therows of brick from being laid upon the yard or floor so closely as theyshould be, and secondly because the divisions or partitions are notchedto allow the followers to descend; the said notches will nec essarilyfill with clay every time the molds are filled and consequently malte itdifficult to depress the followers, and they will also be apt to leaveblemishes upon the brick, and thirdly because the followers cannot beforced entirely out, thus leaving the cleaning of the molds as difficultas though the followers had not been moved at all. It will be seen thatthese objections are all obviated by my arrangement. The mold, beingincreased only about three eighths of an inch in depth, over the size ofthe usual hand mold with a fixed bottom; and being lengthened but at oneend only by the suspended hand piece; and the followers being forcedentirely out to the surface or receiving side of the mold, it isapparent that there is no difliculty in cleaning the molds, and that themolds are not made cumbersome or inconvenient either by weight or size.

This arrangement is applicable to any desired number of molds.

I am aware that two suspended hand pieces have been used, I therefore donot claim such device in itself. But

That I do claim and. desire to secure by Letters Patent is The twocra-nl; rods or their equivalent as connected with the followers andsecured to the frame, and as operated upon by the hand piece; the wholebeing arranged and combined and operated substantially as described andset forth.

In witness whereof I have hereunto sub scribed my name the second day ofNovember eighteen hundred and fifty eight.

JAMES A. HAMER.

fitnesses JOHN THOMPSON, NICHOLAS I-IARE.

